Currently, buses from DAK to most resorts stop at BB on the way out. You can board any bus at DAK load zones 1 thru 8; just be sure to tell the driver you are going to BB.
You will need to transfer at a resort. Fastest would be to take the bus to either Pop or AoA, and transfer there to the bus to DHS. Or, you could take the bus to the Swan and ride the boat to DHS, but that will usually take longer because the boat is very slow.